CN201597701U

CN201597701U - Bicycle for preventing backward-overturning

Info

Publication number: CN201597701U
Application number: CN2009202018216U
Authority: CN
Inventors: 胡勇跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-07
Filing date: 2009-12-07
Publication date: 2010-10-06
Anticipated expiration: 2019-12-07

Abstract

The utility model discloses a bicycle for preventing the backward-overturning, which comprises handles, a frame connected with the handles, front casters, rear casters, a bicycle body, and a pedal arranged behind the bicycle body, wherein the front end of the bicycle body is connected with the frame through a connecting part; the rear end of the bicycle body is connected with the pedal; two rear casters are arranged on two sides of the getting-on pedal; a driving mechanism is arranged on the pedal and comprises arc-shaped racks mounted on the pedal, pinions meshed with the arc-shaped racks, bull gears mounted on the same one-way bearing with the pinion, and intermediate gears mounted on rear caster shafts; and the bull gears are meshed with the intermediate gears. Through the arrangement of the driving device on the pedal, a user treads two feet on the bicycle at the same time for operation to achieve the aim of moving the bicycle forwards; and meanwhile, the getting-on pedal is arranged behind the bicycle to avoid the overturning phenomenon caused by the unstable centre of gravity effectively.

Description

The bicycle that turns over after preventing

Technical field

The utility model relates to a kind of bicycle, refers in particular to the bicycle that turns over after a kind of can the preventing.

Background technology

Fast development along with the public tool of Modern Traffic, increasing people with Kickboard Scooter as with capable amusement and recreation instrument of riding instead of walk, yet Kickboard Scooter in the market or bicycle do not have the actuating device of vehicle to run usually, the user need walk forward by the frictional force drives bicycle that wherein forms between pin and the ground, this not only is not suitable for long use and also greatly reduces enjoyment as amusement and recreation, simultaneously cause the user to fall down or meet accident because of having only a pin to trample the phenomenon that on slide plate, occurs crank easily, therefore press for and a kind ofly both feet can be trampled simultaneously the bicycle that realizations moves ahead on stretcher, can guarantee the bicycle that the slide plate balance and stability is walked simultaneously.

Summary of the invention

The purpose of this utility model is to provide the bicycle that turns over after a kind of can the preventing.

For achieving the above object, the utility model adopts following technical scheme: the bicycle that turns over after a kind of the preventing, it includes handle, with handle bonded assembly vehicle frame, the front and back castor, vehicle body and be arranged at the stretcher at vehicle body rear, the front end of described vehicle body is connected by connecting portion with vehicle frame, body rear end is connected with the pedal of getting on the bus, two rear truckles are arranged on the pedal both sides of getting on the bus, described stretcher is provided with driver train, this driver train comprises the arc-shaped rack that is installed on the pedal, with arc-shaped rack ingear miniature gears, be installed on the big gear wheel on the same unilateral bearing with miniature gears and be installed on middle gear on the rear foot wheel shaft, described big gear wheel is meshed with middle gear.

Compared with prior art, the utlity model has following beneficial effect: can realize that user's both feet are trampled simultaneously at the enterprising line operate of bicycle and can realize the purpose that bicycle moves ahead by actuating device is set, the pedal of getting on the bus is set at the vehicle body rear simultaneously effectively avoid the overturning phenomenon that causes because of crank on stretcher.

Description of drawings

Fig. 1 is the block diagram of the bicycle that turns over after the utility model prevents.

Fig. 2 is the actuating device figure of the bicycle that turns over after the utility model prevents.

Fig. 3 is the part exploded drawings of the bicycle that turns over after the utility model prevents.

The specific embodiment

Be described further this use is novel below in conjunction with accompanying drawing.

Please refer to Fig. 1 to shown in Figure 3, the bicycle that turns over after a kind of the preventing, its include handle 1, with handle bonded assembly vehicle frame 2, front truckle 24, rear truckle 27, vehicle body 3 and be arranged at the stretcher 4 at vehicle body rear, described stretcher 4 front ends are provided with pedal limiting section 42 and pedal rotation section 41, described limiting section 42 is arranged on the rotation section, one spring, 44 1 ends are by on the connecting portion 43 that is bolted to the pedal rotation section, the other end is fixed on the vehicle body, and described stretcher 4 is used to get on the bus ride and simultaneously driver train is also had dustproof effect.

The front end of described vehicle body 3 is connected by connecting portion 21 with vehicle frame 2, vehicle body 3 rear ends are connected with the pedal 6 of getting on the bus, two rear truckles 27 are arranged on pedal 6 both sides of getting on the bus, described stretcher 4 is provided with driver train, this driver train comprises the arc-shaped rack 51 that is installed on the pedal, be installed on the big gear wheel 53 on the same unilateral bearing 54 with arc-shaped rack ingear miniature gears 52, with miniature gears and be installed on middle gear 57 on 27 of the rear truckles, described big gear wheel is meshed with middle gear.51 in described arc tooth is by being bolted on the gear permanent seat 5, and the gear permanent seat is assembled on the pedal 4.

The unilateral bearing 54 that miniature gears 52 is housed is fixed in the endoporus of big gear wheel 53, and described bearing both sides are fixed with jump ring 55 respectively, and described big gear wheel and miniature gears are assembled in the gear case group that forms unidirectional rotation in the gear case 56.On aluminium sheet 58, described aluminium sheet one end is connected with vehicle body 3 described gear case group by screw retention, and the other end is connected with the pedal 6 of getting on the bus.

The described pedal rear of getting on the bus is respectively equipped with auxiliary wheel 61, and this auxiliary wheel is fixed on the pedal of getting on the bus by axle sleeve 62 and Luo silk.

Originally the bicycle that turns over after preventing further is provided with brake member 25 on handle, vehicle frame 2 is provided with the adjustable pipe 20 that can carry out the regulating handle height, vehicle frame and adjustable pipe junction are fixed by handle clip 22, when well carrying out snap close by adjustable pipe 23 later on, fixes the handle height adjustment to prevent the handle absent-mindedness, also be provided with damping spring 26 between described vehicle frame and the front truckle to reduce the vibrations in the forming process, described connecting portion 21 places of connecting to ground are fixed by a fastener, undertaken spacing with vehicle body 3 junctions by the stop section 30 that is arranged on body structure, to prevent connecting portion 21 double swerves, further be provided with spacing lock on the described stop section 30, when spacing lock is in release position,, described connecting portion realizes the folding of bicycle thereby can carrying out the front and back upset.

When trampling stretcher 4, the arc-shaped rack 51 that is installed on the stretcher 4 is thereby that the center is done circular motion and driven the miniature gears 52 be engaged with and rotate and drive big gear wheels 53 and rotate together with pedal rotation section 41, the rotation of big gear wheel drives the meshing with it middle gear 57 that is installed on the rear foot wheel shaft and rotates, and rolls forward thereby drive rear truckle.When stepping on spacing position, unclamps by stretcher tread plate, tread plate upwards resets under the effect of spring 44, arc-shaped rack 51 corresponding up drive miniature gearss are to contrarotation simultaneously, and big gear wheel 53 internal causes are contained on the unilateral bearing 54, thereby make it can not do counter motion and guarantee wheel constantly to overtake, when stretcher continues up arrival limiting section 42 positions, stop uply, trample repeating motion like this once more and just can make scooter not stop to move ahead.

Claims

1. bicycle that turns over after preventing, it includes handle, with handle bonded assembly vehicle frame, the front and back castor, vehicle body and be arranged at the stretcher at vehicle body rear, it is characterized in that: the front end of described vehicle body is connected by connecting portion with vehicle frame, body rear end is connected with the pedal of getting on the bus, two rear truckles are arranged on the pedal both sides of getting on the bus, described stretcher is provided with driver train, this driver train comprises the arc-shaped rack that is installed on the pedal, with arc-shaped rack ingear miniature gears, be installed on the big gear wheel on the same unilateral bearing with miniature gears and be installed on middle gear on the rear foot wheel shaft, described big gear wheel is meshed with middle gear.

2. the bicycle that turns over after as claimed in claim 1 the preventing, it is characterized in that: described arc-shaped rack is by being bolted on the gear permanent seat, the gear permanent seat is assembled on the pedal, described pedal front end is provided with pedal limiting section and pedal rotation section, one spring, one end is fixed on the pedal rotation section, and the other end is fixed on the vehicle body.

3. the bicycle that turns over after as claimed in claim 2 the preventing is characterized in that: described limiting section is arranged on the rotation section, and spring is assembled on the rotation section by bolt.

4. the bicycle that turns over after as claimed in claim 3 the preventing, it is characterized in that: the unilateral bearing that miniature gears is housed is fixed in the endoporus of big gear wheel, described bearing both sides are fixed with jump ring respectively, and described big gear wheel and miniature gears are assembled in the gear case group that forms unidirectional rotation in the gear case.

5. the bicycle that turns over after as claimed in claim 4 the preventing is characterized in that: on aluminium sheet, described aluminium sheet one end is connected with the pedal of getting on the bus with body contact one end described gear case group by screw retention.

6. the bicycle as turning over after each described preventing in the claim 1 to 5, it is characterized in that: the described pedal rear of getting on the bus is respectively equipped with auxiliary wheel.

7. the bicycle that turns over after as claimed in claim 6 the preventing is characterized in that: described connecting portion can fold.